US20080116213A1 - Container with an in-mold label - Google Patents
Container with an in-mold label Download PDFInfo
- Publication number
- US20080116213A1 US20080116213A1 US11/561,844 US56184406A US2008116213A1 US 20080116213 A1 US20080116213 A1 US 20080116213A1 US 56184406 A US56184406 A US 56184406A US 2008116213 A1 US2008116213 A1 US 2008116213A1
- Authority
- US
- United States
- Prior art keywords
- label
- container
- scented
- mold
- substance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 claims abstract description 108
- 239000000463 material Substances 0.000 claims abstract description 102
- 230000008569 process Effects 0.000 claims abstract description 65
- 239000000126 substance Substances 0.000 claims abstract description 26
- 238000001125 extrusion Methods 0.000 claims description 15
- 239000003205 fragrance Substances 0.000 claims description 13
- 229920000642 polymer Polymers 0.000 claims description 13
- 238000000071 blow moulding Methods 0.000 claims description 6
- 239000002775 capsule Substances 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 239000012611 container material Substances 0.000 claims description 4
- 238000010101 extrusion blow moulding Methods 0.000 claims description 4
- 239000000796 flavoring agent Substances 0.000 claims description 4
- 235000019634 flavors Nutrition 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 claims description 4
- 229920001807 Urea-formaldehyde Polymers 0.000 claims description 3
- 239000002304 perfume Substances 0.000 claims description 3
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 claims description 3
- 108010010803 Gelatin Proteins 0.000 claims description 2
- 239000008273 gelatin Substances 0.000 claims description 2
- 229920000159 gelatin Polymers 0.000 claims description 2
- 235000019322 gelatine Nutrition 0.000 claims description 2
- 235000011852 gelatine desserts Nutrition 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims 2
- 238000003825 pressing Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 description 58
- 239000000047 product Substances 0.000 description 14
- 239000000976 ink Substances 0.000 description 12
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 11
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 11
- 229920005989 resin Polymers 0.000 description 10
- 239000011347 resin Substances 0.000 description 10
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 description 9
- 239000003921 oil Substances 0.000 description 9
- 235000019198 oils Nutrition 0.000 description 9
- 238000007639 printing Methods 0.000 description 9
- 229920001903 high density polyethylene Polymers 0.000 description 8
- 239000004700 high-density polyethylene Substances 0.000 description 8
- -1 polyethylene Polymers 0.000 description 8
- 230000008901 benefit Effects 0.000 description 7
- 239000003094 microcapsule Substances 0.000 description 7
- 239000005020 polyethylene terephthalate Substances 0.000 description 6
- 229920000139 polyethylene terephthalate Polymers 0.000 description 6
- 238000005070 sampling Methods 0.000 description 6
- 239000004743 Polypropylene Substances 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 5
- GLZPCOQZEFWAFX-UHFFFAOYSA-N Geraniol Chemical compound CC(C)=CCCC(C)=CCO GLZPCOQZEFWAFX-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000004806 packaging method and process Methods 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229920001684 low density polyethylene Polymers 0.000 description 3
- 239000004702 low-density polyethylene Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- ZPVFWPFBNIEHGJ-UHFFFAOYSA-N 2-octanone Chemical compound CCCCCCC(C)=O ZPVFWPFBNIEHGJ-UHFFFAOYSA-N 0.000 description 2
- WRMNZCZEMHIOCP-UHFFFAOYSA-N 2-phenylethanol Chemical compound OCCC1=CC=CC=C1 WRMNZCZEMHIOCP-UHFFFAOYSA-N 0.000 description 2
- PRNCMAKCNVRZFX-UHFFFAOYSA-N 3,7-dimethyloctan-1-ol Chemical compound CC(C)CCCC(C)CCO PRNCMAKCNVRZFX-UHFFFAOYSA-N 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 229920006378 biaxially oriented polypropylene Polymers 0.000 description 2
- 239000011127 biaxially oriented polypropylene Substances 0.000 description 2
- 238000003490 calendering Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- NEHNMFOYXAPHSD-UHFFFAOYSA-N citronellal Chemical compound O=CCC(C)CCC=C(C)C NEHNMFOYXAPHSD-UHFFFAOYSA-N 0.000 description 2
- QMVPMAAFGQKVCJ-UHFFFAOYSA-N citronellol Chemical compound OCCC(C)CCC=C(C)C QMVPMAAFGQKVCJ-UHFFFAOYSA-N 0.000 description 2
- 239000002537 cosmetic Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- HFJRKMMYBMWEAD-UHFFFAOYSA-N dodecanal Chemical compound CCCCCCCCCCCC=O HFJRKMMYBMWEAD-UHFFFAOYSA-N 0.000 description 2
- RRAFCDWBNXTKKO-UHFFFAOYSA-N eugenol Chemical compound COC1=CC(CC=C)=CC=C1O RRAFCDWBNXTKKO-UHFFFAOYSA-N 0.000 description 2
- 238000007647 flexography Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- RZXDTJIXPSCHCI-UHFFFAOYSA-N hexa-1,5-diene-2,5-diol Chemical compound OC(=C)CCC(O)=C RZXDTJIXPSCHCI-UHFFFAOYSA-N 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000002966 varnish Substances 0.000 description 2
- 239000000341 volatile oil Substances 0.000 description 2
- NOOLISFMXDJSKH-UTLUCORTSA-N (+)-Neomenthol Chemical compound CC(C)[C@@H]1CC[C@@H](C)C[C@@H]1O NOOLISFMXDJSKH-UTLUCORTSA-N 0.000 description 1
- KJPRLNWUNMBNBZ-QPJJXVBHSA-N (E)-cinnamaldehyde Chemical compound O=C\C=C\C1=CC=CC=C1 KJPRLNWUNMBNBZ-QPJJXVBHSA-N 0.000 description 1
- QMVPMAAFGQKVCJ-SNVBAGLBSA-N (R)-(+)-citronellol Natural products OCC[C@H](C)CCC=C(C)C QMVPMAAFGQKVCJ-SNVBAGLBSA-N 0.000 description 1
- WAPNOHKVXSQRPX-UHFFFAOYSA-N 1-phenylethanol Chemical compound CC(O)C1=CC=CC=C1 WAPNOHKVXSQRPX-UHFFFAOYSA-N 0.000 description 1
- OFHHDSQXFXLTKC-UHFFFAOYSA-N 10-undecenal Chemical compound C=CCCCCCCCCC=O OFHHDSQXFXLTKC-UHFFFAOYSA-N 0.000 description 1
- FACFHHMQICTXFZ-UHFFFAOYSA-N 2-(2-phenylimidazo[1,2-a]pyridin-3-yl)ethanamine Chemical compound N1=C2C=CC=CN2C(CCN)=C1C1=CC=CC=C1 FACFHHMQICTXFZ-UHFFFAOYSA-N 0.000 description 1
- BLDFSDCBQJUWFG-UHFFFAOYSA-N 2-(methylamino)-1,2-diphenylethanol Chemical compound C=1C=CC=CC=1C(NC)C(O)C1=CC=CC=C1 BLDFSDCBQJUWFG-UHFFFAOYSA-N 0.000 description 1
- RIWRBSMFKVOJMN-UHFFFAOYSA-N 2-methyl-1-phenylpropan-2-ol Chemical compound CC(C)(O)CC1=CC=CC=C1 RIWRBSMFKVOJMN-UHFFFAOYSA-N 0.000 description 1
- 241000717739 Boswellia sacra Species 0.000 description 1
- NPBVQXIMTZKSBA-UHFFFAOYSA-N Chavibetol Natural products COC1=CC=C(CC=C)C=C1O NPBVQXIMTZKSBA-UHFFFAOYSA-N 0.000 description 1
- 235000005241 Cistus ladanifer Nutrition 0.000 description 1
- 240000008772 Cistus ladanifer Species 0.000 description 1
- WTEVQBCEXWBHNA-UHFFFAOYSA-N Citral Natural products CC(C)=CCCC(C)=CC=O WTEVQBCEXWBHNA-UHFFFAOYSA-N 0.000 description 1
- NOOLISFMXDJSKH-UHFFFAOYSA-N DL-menthol Natural products CC(C)C1CCC(C)CC1O NOOLISFMXDJSKH-UHFFFAOYSA-N 0.000 description 1
- 241000402754 Erythranthe moschata Species 0.000 description 1
- XRHCAGNSDHCHFJ-UHFFFAOYSA-N Ethylene brassylate Chemical compound O=C1CCCCCCCCCCCC(=O)OCCO1 XRHCAGNSDHCHFJ-UHFFFAOYSA-N 0.000 description 1
- 239000005770 Eugenol Substances 0.000 description 1
- 239000004863 Frankincense Substances 0.000 description 1
- 235000018958 Gardenia augusta Nutrition 0.000 description 1
- 239000005792 Geraniol Substances 0.000 description 1
- GLZPCOQZEFWAFX-YFHOEESVSA-N Geraniol Natural products CC(C)=CCC\C(C)=C/CO GLZPCOQZEFWAFX-YFHOEESVSA-N 0.000 description 1
- BJIOGJUNALELMI-ONEGZZNKSA-N Isoeugenol Natural products COC1=CC(\C=C\C)=CC=C1O BJIOGJUNALELMI-ONEGZZNKSA-N 0.000 description 1
- 239000004869 Labdanum Substances 0.000 description 1
- 235000019501 Lemon oil Nutrition 0.000 description 1
- GLZPCOQZEFWAFX-JXMROGBWSA-N Nerol Natural products CC(C)=CCC\C(C)=C\CO GLZPCOQZEFWAFX-JXMROGBWSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- UVMRYBDEERADNV-UHFFFAOYSA-N Pseudoeugenol Natural products COC1=CC(C(C)=C)=CC=C1O UVMRYBDEERADNV-UHFFFAOYSA-N 0.000 description 1
- 241000220317 Rosa Species 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 description 1
- 239000003377 acid catalyst Substances 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- HMKKIXGYKWDQSV-KAMYIIQDSA-N alpha-Amylcinnamaldehyde Chemical compound CCCCC\C(C=O)=C\C1=CC=CC=C1 HMKKIXGYKWDQSV-KAMYIIQDSA-N 0.000 description 1
- XPNGNIFUDRPBFJ-UHFFFAOYSA-N alpha-methylbenzylalcohol Natural products CC1=CC=CC=C1CO XPNGNIFUDRPBFJ-UHFFFAOYSA-N 0.000 description 1
- 235000019568 aromas Nutrition 0.000 description 1
- JGQFVRIQXUFPAH-UHFFFAOYSA-N beta-citronellol Natural products OCCC(C)CCCC(C)=C JGQFVRIQXUFPAH-UHFFFAOYSA-N 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000010627 cedar oil Substances 0.000 description 1
- SVURIXNDRWRAFU-OGMFBOKVSA-N cedrol Chemical compound C1[C@]23[C@H](C)CC[C@H]3C(C)(C)[C@@H]1[C@@](O)(C)CC2 SVURIXNDRWRAFU-OGMFBOKVSA-N 0.000 description 1
- 229940026455 cedrol Drugs 0.000 description 1
- PCROEXHGMUJCDB-UHFFFAOYSA-N cedrol Natural products CC1CCC2C(C)(C)C3CC(C)(O)CC12C3 PCROEXHGMUJCDB-UHFFFAOYSA-N 0.000 description 1
- 229940117916 cinnamic aldehyde Drugs 0.000 description 1
- KJPRLNWUNMBNBZ-UHFFFAOYSA-N cinnamic aldehyde Natural products O=CC=CC1=CC=CC=C1 KJPRLNWUNMBNBZ-UHFFFAOYSA-N 0.000 description 1
- BJIOGJUNALELMI-ARJAWSKDSA-N cis-isoeugenol Chemical compound COC1=CC(\C=C/C)=CC=C1O BJIOGJUNALELMI-ARJAWSKDSA-N 0.000 description 1
- 229940043350 citral Drugs 0.000 description 1
- 229930003633 citronellal Natural products 0.000 description 1
- 235000000983 citronellal Nutrition 0.000 description 1
- 235000000484 citronellol Nutrition 0.000 description 1
- 239000001111 citrus aurantium l. leaf oil Substances 0.000 description 1
- 239000001524 citrus aurantium oil Substances 0.000 description 1
- 239000001071 citrus reticulata blanco var. mandarin Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000012792 core layer Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 229940093468 ethylene brassylate Drugs 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 239000001734 eugenia caryophyllata l. bud oleoresin Substances 0.000 description 1
- 229960002217 eugenol Drugs 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- WTEVQBCEXWBHNA-JXMROGBWSA-N geranial Chemical compound CC(C)=CCC\C(C)=C\C=O WTEVQBCEXWBHNA-JXMROGBWSA-N 0.000 description 1
- 229940113087 geraniol Drugs 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229920005669 high impact polystyrene Polymers 0.000 description 1
- 239000004797 high-impact polystyrene Substances 0.000 description 1
- WPFVBOQKRVRMJB-UHFFFAOYSA-N hydroxycitronellal Chemical compound O=CCC(C)CCCC(C)(C)O WPFVBOQKRVRMJB-UHFFFAOYSA-N 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000010102 injection blow moulding Methods 0.000 description 1
- 229930002839 ionone Natural products 0.000 description 1
- 150000002499 ionone derivatives Chemical class 0.000 description 1
- SVURIXNDRWRAFU-UHFFFAOYSA-N juniperanol Natural products C1C23C(C)CCC3C(C)(C)C1C(O)(C)CC2 SVURIXNDRWRAFU-UHFFFAOYSA-N 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000001469 lavandula hydrida abrial herb oil Substances 0.000 description 1
- 239000010501 lemon oil Substances 0.000 description 1
- CDOSHBSSFJOMGT-UHFFFAOYSA-N linalool Chemical compound CC(C)=CCCC(C)(O)C=C CDOSHBSSFJOMGT-UHFFFAOYSA-N 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229920001179 medium density polyethylene Polymers 0.000 description 1
- 239000004701 medium-density polyethylene Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 229940041616 menthol Drugs 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229940067137 musk ketone Drugs 0.000 description 1
- XMWRWTSZNLOZFN-UHFFFAOYSA-N musk xylene Chemical group CC1=C(N(=O)=O)C(C)=C(N(=O)=O)C(C(C)(C)C)=C1N(=O)=O XMWRWTSZNLOZFN-UHFFFAOYSA-N 0.000 description 1
- 239000000025 natural resin Substances 0.000 description 1
- 239000005026 oriented polypropylene Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- SATCULPHIDQDRE-UHFFFAOYSA-N piperonal Chemical compound O=CC1=CC=C2OCOC2=C1 SATCULPHIDQDRE-UHFFFAOYSA-N 0.000 description 1
- 239000001738 pogostemon cablin oil Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- BJIOGJUNALELMI-UHFFFAOYSA-N trans-isoeugenol Natural products COC1=CC(C=CC)=CC=C1O BJIOGJUNALELMI-UHFFFAOYSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- MWOOGOJBHIARFG-UHFFFAOYSA-N vanillin Chemical compound COC1=CC(C=O)=CC=C1O MWOOGOJBHIARFG-UHFFFAOYSA-N 0.000 description 1
- FGQOOHJZONJGDT-UHFFFAOYSA-N vanillin Natural products COC1=CC(O)=CC(C=O)=C1 FGQOOHJZONJGDT-UHFFFAOYSA-N 0.000 description 1
- 235000012141 vanillin Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D23/00—Details of bottles or jars not otherwise provided for
- B65D23/08—Coverings or external coatings
- B65D23/0842—Sheets or tubes applied around the bottle with or without subsequent folding operations
- B65D23/0864—Applied in mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14778—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/24—Lining or labelling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/74—Moulding material on a relatively small portion of the preformed part, e.g. outsert moulding
- B29C70/76—Moulding on edges or extremities of the preformed part
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/04—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps to be fastened or secured by the material of the label itself, e.g. by thermo-adhesion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C2045/1486—Details, accessories and auxiliary operations
- B29C2045/14901—Coating a sheet-like insert smaller than the dimensions of the adjacent mould wall
- B29C2045/14918—Coating a sheet-like insert smaller than the dimensions of the adjacent mould wall in-mould-labelling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/24—Lining or labelling
- B29C2049/2414—Linings or labels, e.g. specific geometry, multi-layered or material
- B29C2049/24302—Label materials
- B29C2049/24306—Label materials using different material for the label and the preform
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/04—Extrusion blow-moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/06—Injection blow-moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/16—Lining or labelling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/744—Labels, badges, e.g. marker sleeves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2203/00—Decoration means, markings, information elements, contents indicators
- B65D2203/02—Labels
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/905—Odor releasing material
Definitions
- Embodiments of the present invention generally relate to a container having an in-mold label. Particularly, embodiments of present invention relate to the container having an in-mold label adapted to release a scent and to methods for supplying a scent to a label and affixing the label to a container using an in-mold label process.
- sampling methods have been developed to allow the consumer to sample the product without opening the packaging or container.
- One method is to make available an “open” sample for sampling on site. This method is often used in the marketing of cosmetics. The method of providing open samples has limited usage and may become quite expensive.
- Another sampling method is to apply a sticker that has been treated with the fragrance of the product on the packaging.
- the sticker is made of paper and includes an adhesive such as glue on the back side of the paper.
- the fragrance may be added by dosing the sticker with the fragrance oil.
- the fragrance may also be applied to the sticker using an encapsulation process.
- This type of sticker is commonly known as the scratch and sniff sticker.
- One drawback of the sticker sample is that it is removable. Another drawback is that the sticker sample will lose its fragrance in a relatively short period of time with repeated sampling at the shelf.
- a method of attaching a label to an article comprises providing a label having a scented material, and attaching the label to the article using an in-mold label process.
- a container is produced by a process which comprises the steps of supplying a scented material to the label; positioning the label in a mold for forming the container; supplying a material for forming the container; and attaching the label to the container.
- a container comprises an interior cavity for retaining a substance, and a label adapted to dispense a scent, wherein the label is disposed on an exterior surface of the container using an in-mold label process.
- a method of forming a container comprises providing a label, treating the label with a scent, forming the container using an in-mold process, and integrating the label to the container during the in-mold process.
- a method of releasing a scent from a container comprises providing a label, treating the label with a scented substance, affixing the label to the container using an in-mold label process, and releasing the scent from the label.
- a container has a label adapted to dispense a scent suggestive of a content of the container, wherein the label is disposed on an exterior surface of the container using an in-mold label process, comprising contacting the label with the exterior surface and thermally treating the exterior surface and the label to incorporate the label into the exterior surface.
- a method of attaching a label to a container for retail sale comprises providing a label having a scented material suggestive of a content of the container and attaching the label to an exterior surface of the container using an in-mold label process selected from the group consisting of an extrusion blow molding process, an injection molding process, and a stretch blow molding process.
- the label may contain one or more polymeric layers. At least one of the layers of the label may be treated with the scented material using any suitable method known to person of ordinary skill in the art.
- the scented material is added to the polymer that is subsequently extruded to form the label.
- the scented material is encapsulated and subsequently coated on one or more layers of the label.
- the label may be attached to the container using any suitable in-mold label process known to a person of ordinary skill in the art.
- exemplary in-mold label processes include injection mold process, extrusion blow mold process, and stretch blow molding.
- FIG. 1 illustrates a process flow diagram for forming a container having an in-mold label treated with a scented material according one embodiment of the present invention.
- FIG. 2 shows a cross-sectional side view of an exemplary label film.
- FIG. 3 shows a partial top view of the label film after printing.
- FIG. 4 illustrates a process flow diagram for forming the bottle according another embodiment of the present invention.
- FIG. 5 shows a body portion of an embodiment of a mold.
- FIG. 6 shows a container having an in-mold label treated with a scented material manufactured in accordance with an embodiment of the present invention.
- Embodiments of the present invention relate to methods for forming an article, e.g., a container having an in-mold label adapted to release a scented material.
- Embodiments further include articles having in-mold labels adapted to release a scented material.
- the scent released from the label represents the scent of the substance in a container.
- the in-mold label may be used to communicate the scent of a product without tampering with its packaging and/or exposing the contents of the product to ambient. For example, a consumer may sample the fragrance of the contents of the product without opening its packaging.
- the method includes treating the label with a scented material and attaching the label to the container using an in-mold label process.
- the label is attached to an exterior surface of the container.
- FIG. 1 shows a process 10 for forming a container according a preferred embodiment.
- a label is treated with a scented material, see step 1 - 1 .
- the label is then positioned in a mold for forming the container, see step 1 - 2 .
- the material for forming the structure of the container is heated and injected into the mold, see step 1 - 3 .
- the structural material may be heated to a temperature between about 365° K. (200° F.) and about 560° K. (550° F.) before it is injected into the mold.
- the label and the heated structural material interact, whereby the label is incorporated into the heated structural material that forms the container.
- the container is allowed to cool before being ejected from the mold to obtain a container having a label adapted to release a scented material, see step 1 - 4 .
- the label film may include one or more layers of polymeric material.
- Exemplary polymeric materials include polyethylene (e.g., HDPE, MDPE, LDPE, LLDPE), polypropylene (e.g., PP, OPP), blends of PP and PE, polyvinyl chloride (PVC), polyethylene terephthalate (e.g., PET, EPET, PETG, OPET), polystyrene (e.g., PS, HIPS), and polyamide.
- the label film may be a thermoplastic resin layer having a melting point from 135° C. to 264° C.
- Other suitable materials of the label film include synthetic paper, metal foil, polymer, and combinations of suitable materials.
- FIG. 2 shows a cross-sectional side view of an exemplary label film 30 having a plurality of layers (three shown by way of example).
- each of the three layers is made of polymeric material.
- the first layer 31 the outer layer, is treated with a scented material such as an oil substance during the extrusion process.
- the second layer 32 the core layer, may include a material that acts as a barrier to prevent the scented material from migrating toward the container.
- the third layer 33 the inner layer, may include a material that adheres to the exterior surface of the container.
- the inner layer 33 includes a material that is the same or similar to the container material, for example, HDPE.
- the inner layer 33 may include a heat activated resin that would attach the finished label to the container when it comes into contact with the heated structural material of the container.
- the label film 30 may be optionally moved to a printing station where information 35 such as text and/or graphics may be printed on the label film 30 .
- FIG. 3 shows a partial top view of the label film 30 after passing the printing station. Then, the printed label film 30 may be optionally moved to a cutting station where it is cut into individual labels. These finished labels may then be stored in a magazine or cartridge for use during the in-mold process.
- the inner layer 33 may include additives to provide slip and anti-static properties to prevent the labels from sticking to each other while stored in the magazine and to promote separation of the labels to facilitate insertion of the labels into the mold.
- the size of the finished label may be any suitable size desired for incorporation onto the container.
- the size of the finished label may be less than one-half or one-fourth of the size of the exterior surface of the container.
- the scented material is added to the label during extrusion of the polymeric label film.
- the scented material may be supplied to a chemical injection feed during the extrusion step such that the label film extruded from the die will have the scented material incorporated therein.
- a carrier polymer is initially imbibed in the scented material. The imbibed carrier polymer is subsequently blended with a primary polymer and extruded to form the label film.
- a desired portion of the scented material may be advantageously added to the label.
- the scented material may be incorporated into one or more of the layers.
- the polymeric label film may be extruded using a cast film process, a blown-film process, or any suitable process known to a person of ordinary skill in the art. These processes may be used to manufacture a film having a thickness from 0.0003 inches to 0.005 inches or higher.
- a cast film process the polymeric label film is extruded in a molten state from an extrusion die ranging in width from 24 inches to 120 inches, although widths above and below this range may also be used.
- the hot extrudate is fed through a set of calendaring rolls which imparts a finish to the hot extrudate and creates a uniform film thickness.
- the film may be processed for biaxial orientation to impart properties such as toughness to the film.
- Biaxial orientation may involve various combinations of stretch of the film in the machine direction and cross machine direction. If the film is to be oriented, heat is applied to the film after calendaring and the film is stretched in one direction, either machine direction or cross machine direction. Then the film is reheated and stretched in the opposite direction. If the film is not to be oriented, the film is allowed to cool as it continues through the cast film process. Thereafter, the edges are trimmed evenly, and the film is wound into rolls for subsequent processing such as printing and cutting.
- the label film is manufactured by extruding the molten polymer through a circular die which may include multiple layers of various polymers.
- the hot extrudate is produced in a tubular form and may be processed without orientation.
- air may be forced inside the tube to enlarge the tubular diameter beyond the diameter of the circular die and impart an orientation into the film.
- Adding orientation to the film imparts properties such as toughness and clarity into the film.
- the tubular film is allowed to cool, and thereafter collapsed into a flat shape. Then the folded ends are trimmed off to provide the film with a desired width.
- the two halves of the film are wound onto separate rolls for subsequent processing.
- the scented material may be encapsulated and subsequently disposed onto one or more layers of the label.
- a scented material such as an oil or oil substance is enclosed in a microcapsule.
- the shell of the microcapsule may comprise urea-formaldehyde or cross-linked gelatin. Any of the known processes for encapsulating oil may be used to form the microcapsule.
- the encapsulation process involves preparing an urea-formaldehyde precondensate using an alkaline catalyzed reaction of urea and formaldehyde in water.
- the scented material to fill the microcapsule is then added to the precondensate and may be maintained in the form of dispersed particles in the precondensate by agitation.
- the scented material is relatively insoluble in the precondensate and inert toward reaction with other components in the precondensate.
- an acid catalyst is added to the precondensate to promote the formation of the polymerized shell wall of the microcapsule.
- the temperature of the precondensate may be raised to complete the shell formation.
- the reaction is allowed to proceed until a desired pH is reached before separation of the newly formed capsules.
- the microcapsules may be sprayed, printed, or otherwise disposed onto the film either before or after extrusion.
- the scented material may be released by physically rupturing the shell using pressure, shear force, or heat.
- the encapsulated fragrance is disposed in the printed outer layer to allow rupturing of the microcapsule by the consumer for sampling of the fragrance.
- Exemplary encapsulation processes are disclosed in U.S. Pat. No. 3,516,846 issued to Matson and U.S. Pat. No. 6,413,548 issued to Hamer et al., which patents are herein incorporated by reference in their entirety. It is contemplated that embodiments of the present invention include the use of any suitable method of treating the label with a scented material known to a person of ordinary skill in the art.
- the scented material may be printed onto the surface of the label.
- the scented material may be incorporated into the ink and subsequently applied onto the polymeric label film.
- a label printer applies the ink to the outer layer of the label film. This is usually followed by application of a clear top-coat over the ink to protect the ink against abrasion and other environment factors.
- the ink is allowed to fully dry (i.e., cure) before the label film is cut into individual labels for use in the in-mold process.
- Various printing methods that are common in the industry may be utilized, such as rotogravure, offset lithography, and flexography.
- Silk screening may also be used, but is not a process that is typically used for large manufacturing quantities. However, the process of silk screening may apply a thicker layer of ink which may be desirable in certain applications. Factors considered when selecting the printing process include the desired ink thickness, viscosity of the printing inks, image to be printed, number of colors, and other operational concerns such as quantity of labels to be produced.
- the vehicle for delivering the scented material may impact the decision of which label manufacturing process to use. For example, if the scent vehicle is oil, the oil may be a component of the liquid ink and applied to the film using any of the above processes.
- Rotogravure cylinders have an etched surface for picking up ink and depositing the inks onto the label film.
- the etched surface may have difficulty in picking up solids such as the encapsulated sphere for deposition onto the label film.
- Forms of the scented material include, but are not limited to, solid, gel, liquid, gas, and combinations thereof suitable for releasing a dispersant into the surrounding atmosphere.
- Examples of the scented material include fragrances, flavor, natural essential oils, synthetic perfumes, and combinations thereof.
- Perfumery materials which may form the active ingredient of the scented material include: natural essential oils such as lemon oil, mandarin oil, clove leaf oil, petitgrain oil, cedar wood oil, patchouli oil, lavandin oil, neroli oil, ylang oil, rose absolute or jasmin absolute; natural resins such as labdanum resin or olibanum resin; single perfumery chemicals which may be isolated from natural sources or manufactured synthetically, as for example alcohols such as geraniol, nerol, citronellol, linalol, tetrahydrogeraniol, betaphenylethyl alcohol, methyl phenyl carbinol, dimethyl benzyl carbinol, menthol or cedrol; acetates and other esters derived form such alcohols-aldehydes such as citral, citronellal, hydroxycitronellal, lauric aldehyde, undecylenic aldehyde, cinnamaldehyde,
- the label containing the scented material is affixed to an article (e.g., container) using an in-mold label process.
- an in-mold label process may be used to affix the label.
- a blow mold label process is used to form a high density polyethylene (“HDPE”) bottle having an in-mold label treated with a scented material.
- FIG. 4 illustrates a process flow diagram for forming the bottle.
- the label is formed (step 4 - 1 ) from a label film having three layers of polymeric material, such as was described with respect to FIG. 2 .
- a first layer i.e., the outer layer
- the scented material such as an oil substance during the extrusion process.
- information such as text (i.e., alphanumeric characters) and/or graphics may be printed on the label film, see step 4 - 3 .
- top varnish or clear coat may be applied on top of the label. In one embodiment, the varnish or coat is sufficiently permeable so that the scented material may release into the surrounding atmosphere.
- the label film is then cut into individual labels and stacked in a magazine for retrieval by a robot arm or other suitable conveying apparatus of an in-mold machine.
- the robot arm picks up a treated label and positions the label in the mold at step 4 - 6 .
- the mold includes a right body portion and a left body portion which may be brought together to form the mold.
- FIG. 5 shows one body portion 51 of an exemplary mold 50 . When the body portions are brought together, a cavity 55 is formed in the mold 50 and the interior wall 60 of the mold 50 is in the desired shape of the container.
- the robot arm positions the label 25 adjacent the wall 60 of at least one of the body portions 51 .
- the robot arm may include a transfer head adapted to engage the label 25 using a vacuum and to deliver the label 25 to the mold 50 . Alternatively, the label is held using a static charge or other known manner.
- FIG. 5 shows the label 25 positioned in the cavity 55 .
- the label 25 may be held in the mold 51 using a vacuum or other suitable means.
- the HDPE material for the container is heated and extruded into the shape of a hollow tube, which is also known as a parison, for insertion into the mold.
- the parison is heated to a temperature between about 365° K. (200° F.) and about 560° K. (550° F.) and, more preferably, between about 472° K. (390° F.) and about 505° K. (450° F.).
- the mold which is at a lower temperature relative to the parison, is closed around the parison.
- blow air is injected into the hollow portion of the parison at a pressure between about 172.3 kPa (25 psi) to about 1,033.8 kPa (150 psi) to inflate the parison to conform to the cavity wall of the blow mold.
- the label may attach to the parison as a result of its polymeric makeup.
- the contact surface, i.e., the inner layer 33 , of the label may be formed of the same polymeric material or a similar polymeric material as the container material, thereby facilitating the bonding of the label to the container.
- the label may attach to the parison using a heat activated resin, adhesive, or sealant layer applied on the contact surface of the label.
- the label becomes an integral part of the container after engagement with the container.
- the mold is opened to eject the newly formed bottle.
- the bottle formed includes a cavity for retaining a substance and an in-mold label attached to an exterior surface.
- the in-mold label is adapted to release a scented material.
- the treated label may be affixed to the container using an injection blow molding process or a stretch blow molding as is known to a person of ordinary skill in the art.
- An exemplary injection molding process is disclosed in U.S. Pat. No. 6,884,381 issued to Hashimoto, which patent is herein incorporated by reference in its entirety.
- a benefit of the in-mold label process is that a “no-label” look may be achieved.
- the in-mold label would not be easily removed or peeled off.
- the scented material may dissipate during the in-mold process. However, any such dissipation would not be sufficient to change the effectiveness of the treated label.
- the scented material is generally treated on the side of the label that faces the cooled cavity wall, which is also the side that does not contact the container. Further, because the label is positioned adjacent the wall of the cooled metal mold, the outer surface of the container in contact with the label cools faster relative to other parts of the parison.
- the molding process is a relatively short process such that an insignificant amount, if any, of the scented material is dissipated during the blow molding process.
- the entire process from inserting the parison and ejecting the newly formed container may only take approximately 10 seconds.
- the scented material may be incorporated into any layer or a plurality of layers of the label.
- the scented material may be incorporated into an interior layer of the label.
- the scented material may be disposed on the extrusion tie-layer of the label.
- the extrusion tie-layer is typically used to adhere or “tie” two separate layers of the label.
- the label may include an outer layer that is designed to promote effective ink adhesion for subsequent printing, for example, reversed printing of the layer with the desired information. Examples of outer layer material include OPET (oriented polyethylene terephthalate) or BOPP (biaxially-oriented polypropylene).
- the label may further include a heat activated inner adhesion layer.
- the inner adhesion layer may include additives which provide slip and anti-static properties to facilitate separation of the labels during the in-mold label process.
- An extrusion tie-layer may be used to “tie” the outer layer to the inner layer. Extrusion tie-layers may be non-reactive such as low density polyethylene (“LDPE”) and ethylene copolymers or reactive such as maleic anhydride grafted olefins. In one embodiment, the extrusion tie-layer is a semi-rigid opaque polyolefin film. By incorporating the scented material into the tie-layer, the tie-layer may perform dual functions.
- the scented material may permeate from the tie-layer into the outside environment or into the container content, where the container resin allows such permeation.
- the label may further include a barrier layer disposed between the tie-layer and the inner adhesive layer.
- An exemplary barrier layer is a layer made from ethylene vinyl alcohol (“EVOH”). In this respect, the barrier layer would prevent the scented material from penetrating into the container and encourage the scented material to permeate only through the outer layer of the label.
- the scented material may be released over time.
- the rate of release may be controlled by the permeation rate through the outer layer.
- the scent dissipation rate through the outer layer may be controlled to ensure that the product will make it to the market place and the label still possesses sufficient scent-generating capability to serve as a sample or to garner interest from the consumer.
- the label may be wrapped or covered either before the label is incorporated onto the container by the in-mold process or after it has been disposed on the container, i.e., the finished container.
- the label may be disposed on a container made from a material that is impervious to scent permeation.
- the label may include a reversed printed outer layer, an extrusion tie-layer containing the scented material, and a heat activated inner adhesive layer.
- the label is formed on the container using an in-mold label process.
- the resin of the container is selected such that it is impervious to significant scent permeation.
- An exemplary resin for protecting against migration of flavors or aromas is ethylene vinyl alcohol (“EVOH”).
- EVOH resins are thermoplastic polymers that may be combined with other resins in a co-extrusion blow molding and other suitable processes to form the structural material for the container.
- container structural material containing EVOH examples include: (a) PP/regrind (recycled thermoplastic waste)/EVOH/PP; (b) HDPE/regrind/EVOH/HDPE; (c) HDPE/regrind/EVOH; and (d) PET/EVOH/ PET/EVOH/PET. Because use of the non-permeable resin negates the need for the additional barrier layer, this type of container has the added benefit of reducing manufacturing costs.
- FIG. 6 shows an exemplary embodiment of a container 100 having an in-mold label 110 adapted to release a scented material.
- the container 100 includes a body 115 having a cavity in its interior for retaining a substance.
- the container 100 also includes an opening 120 for introduction of the substance into the cavity.
- the container 100 is made of a polymeric material.
- the container 100 may be of any shape, form, or size, so long as it is capable of being formed in an in-mold process.
- Exemplary containers include, but not limited to, bottle, bowl, jar, and any other containers capable of retaining a substance, which substance may be a solid, liquid, gas, or combinations thereof.
- the label 110 is disposed on the container 100 using an in-mold label process.
- the label 110 may be any shape, form, or size.
- the label 110 comprises a polymeric material. More preferably, the polymeric material is the same as or substantially the same as the polymeric material of the container 100 .
- the label 110 may have printed thereon information, graphics, or combinations thereof.
- the label 110 is treated with a scented material 125 , which may be released into the surrounding atmosphere.
- the label 110 may be treated with the scented material 125 using any of the processes described above or any other suitable process known to a person of ordinary skill in the art. It is contemplated that a portion or the entire label 110 may be treated with scented material.
- one label 110 is shown on the container 100 , it is contemplated that one or more labels 110 may be attached to the container 100 . Further, not all of the labels, if more than one is used, are required to be treated with a scented material. For example, a container may have one label that is treated with a scented material and another label that is not treated with a scented material. Although one or more labels 110 maybe positioned anywhere on the container 100 , it is preferred that at least a portion of a label 110 is positioned on an exterior surface of the container 100 .
- the container 100 may optionally include a cap 130 adapted to close the opening 120 , as illustrated in FIG. 6 .
- the cap 130 may be any shape, form, or size, so long as it is capable of closing at least a portion of the opening 120 .
- the cap 130 may be manufactured in the same mold as the body 115 of the container 100 .
- the cap 130 may be manufactured separately from the body 115 .
- the cap 130 is formed using an in-mold label process.
- the cap 130 may be formed with an in-mold label 135 .
- the in-mold label 135 may be treated with a scented material 137 , which may be released into the surrounding environment.
- the label 135 may be positioned on a sidewall of the cap 130 or the top of the cap 130 . Because the interior of the cap 130 is at least partially exposed when it is removed, the label 135 may alternatively be positioned on the interior of the cap 130 . In another embodiment, the label 135 may cover a portion or the entire cap 130 . In yet another embodiment, at least one in-mold label 110 , 135 treated with scented material 125 , 137 is positioned on the body 115 , the cap 130 , or both.
- Containers formed in accordance with embodiments of the present invention would find application in the promotion of any food, toiletries, cosmetics, or any product that has a distinctive or pleasant aroma.
- treated in-mold labels may serve as a warning label, for example, if the scent on the treated label is detected; a problem exists with the product.
- the label may be adapted to release a scent, or change the scent being released, upon exposure to a particular environmental effect or after a predetermined period of time.
- the label may be placed on fungible goods and may be treated with a time-released scent that conveys to a user spoilage of the associated good.
Abstract
Description
- 1. Field of the Invention
- Embodiments of the present invention generally relate to a container having an in-mold label. Particularly, embodiments of present invention relate to the container having an in-mold label adapted to release a scent and to methods for supplying a scent to a label and affixing the label to a container using an in-mold label process.
- 2. Description of the Related Art
- Many products are often sampled by the consumer prior to their purchase. Some of these products give off a fragrance, flavor, perfume, or other distinctive or pleasant scent. In many cases, the consumer will open a container to gain exposure to the scent of the product. Such practice is common in products such as toiletries. However, the consumer sampling the product in this manner may have the undesired effect of contaminating or inadvertently adulterating the product.
- To overcome this problem, a variety of sampling methods have been developed to allow the consumer to sample the product without opening the packaging or container. One method is to make available an “open” sample for sampling on site. This method is often used in the marketing of cosmetics. The method of providing open samples has limited usage and may become quite expensive. Another sampling method is to apply a sticker that has been treated with the fragrance of the product on the packaging. Typically, the sticker is made of paper and includes an adhesive such as glue on the back side of the paper. The fragrance may be added by dosing the sticker with the fragrance oil. The fragrance may also be applied to the sticker using an encapsulation process. This type of sticker is commonly known as the scratch and sniff sticker. One drawback of the sticker sample is that it is removable. Another drawback is that the sticker sample will lose its fragrance in a relatively short period of time with repeated sampling at the shelf.
- There is a need, therefore, for a method for associating a fragrance with an article. There is also a need for an article having a mechanism for conveying a scent to a user.
- In one embodiment, a method of attaching a label to an article (e.g., a container) comprises providing a label having a scented material, and attaching the label to the article using an in-mold label process.
- In another embodiment, a container is produced by a process which comprises the steps of supplying a scented material to the label; positioning the label in a mold for forming the container; supplying a material for forming the container; and attaching the label to the container.
- In yet another embodiment, a container comprises an interior cavity for retaining a substance, and a label adapted to dispense a scent, wherein the label is disposed on an exterior surface of the container using an in-mold label process.
- In yet another embodiment, a method of forming a container comprises providing a label, treating the label with a scent, forming the container using an in-mold process, and integrating the label to the container during the in-mold process.
- In yet another embodiment, a method of releasing a scent from a container comprises providing a label, treating the label with a scented substance, affixing the label to the container using an in-mold label process, and releasing the scent from the label.
- In yet another embodiment, a container has a label adapted to dispense a scent suggestive of a content of the container, wherein the label is disposed on an exterior surface of the container using an in-mold label process, comprising contacting the label with the exterior surface and thermally treating the exterior surface and the label to incorporate the label into the exterior surface.
- In yet another embodiment, a method of attaching a label to a container for retail sale comprises providing a label having a scented material suggestive of a content of the container and attaching the label to an exterior surface of the container using an in-mold label process selected from the group consisting of an extrusion blow molding process, an injection molding process, and a stretch blow molding process.
- In yet another embodiment, the label may contain one or more polymeric layers. At least one of the layers of the label may be treated with the scented material using any suitable method known to person of ordinary skill in the art. In one embodiment, the scented material is added to the polymer that is subsequently extruded to form the label. In another embodiment, the scented material is encapsulated and subsequently coated on one or more layers of the label.
- In another embodiment, the label may be attached to the container using any suitable in-mold label process known to a person of ordinary skill in the art. Exemplary in-mold label processes include injection mold process, extrusion blow mold process, and stretch blow molding.
- So that the manner in which the above recited features of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to embodiments, some of which are illustrated in the appended drawings. It is to be noted, however, that the appended drawings illustrate only typical embodiments of this invention and are therefore not to be considered limiting of its scope, for the invention may admit to other equally effective embodiments.
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FIG. 1 illustrates a process flow diagram for forming a container having an in-mold label treated with a scented material according one embodiment of the present invention. -
FIG. 2 shows a cross-sectional side view of an exemplary label film. -
FIG. 3 shows a partial top view of the label film after printing. -
FIG. 4 illustrates a process flow diagram for forming the bottle according another embodiment of the present invention. -
FIG. 5 shows a body portion of an embodiment of a mold. -
FIG. 6 shows a container having an in-mold label treated with a scented material manufactured in accordance with an embodiment of the present invention. - In the following, reference is made to embodiments of the invention. However, it should be understood that the invention is not limited to specific described embodiments. Instead, any combination of the following features and elements, whether related to different embodiments or not, is contemplated to implement and practice the invention. Furthermore, in various embodiments the invention provides numerous advantages over the prior art. However, although embodiments of the invention may achieve advantages over other possible solutions and/or over the prior art, whether or not a particular advantage is achieved by a given embodiment is not limiting of the invention. Thus, the following aspects, features, embodiments and advantages are merely illustrative and are not considered elements or limitations of the appended claims except where explicitly recited in a claim(s). Likewise, reference to “the invention” shall not be construed as a generalization of any inventive subject matter disclosed herein and shall not be considered to be an element or limitation of the appended claims except where explicitly recited in a claim(s).
- Embodiments of the present invention relate to methods for forming an article, e.g., a container having an in-mold label adapted to release a scented material. Embodiments further include articles having in-mold labels adapted to release a scented material. In one embodiment, the scent released from the label represents the scent of the substance in a container. In this respect, it is contemplated that, at least in one embodiment, the in-mold label may be used to communicate the scent of a product without tampering with its packaging and/or exposing the contents of the product to ambient. For example, a consumer may sample the fragrance of the contents of the product without opening its packaging.
- In one embodiment, the method includes treating the label with a scented material and attaching the label to the container using an in-mold label process. Preferably, the label is attached to an exterior surface of the container.
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FIG. 1 shows aprocess 10 for forming a container according a preferred embodiment. Initially, a label is treated with a scented material, see step 1-1. The label is then positioned in a mold for forming the container, see step 1-2. Thereafter, the material for forming the structure of the container is heated and injected into the mold, see step 1-3. The structural material may be heated to a temperature between about 365° K. (200° F.) and about 560° K. (550° F.) before it is injected into the mold. During step 1-3, the label and the heated structural material interact, whereby the label is incorporated into the heated structural material that forms the container. Finally, the container is allowed to cool before being ejected from the mold to obtain a container having a label adapted to release a scented material, see step 1-4. - In one embodiment, formation of the label involves extruding a polymeric material through a die to initially form a label film. The label film may include one or more layers of polymeric material. Exemplary polymeric materials include polyethylene (e.g., HDPE, MDPE, LDPE, LLDPE), polypropylene (e.g., PP, OPP), blends of PP and PE, polyvinyl chloride (PVC), polyethylene terephthalate (e.g., PET, EPET, PETG, OPET), polystyrene (e.g., PS, HIPS), and polyamide. In one embodiment, the label film may be a thermoplastic resin layer having a melting point from 135° C. to 264° C. Other suitable materials of the label film include synthetic paper, metal foil, polymer, and combinations of suitable materials.
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FIG. 2 shows a cross-sectional side view of anexemplary label film 30 having a plurality of layers (three shown by way of example). In one embodiment, each of the three layers is made of polymeric material. Thefirst layer 31, the outer layer, is treated with a scented material such as an oil substance during the extrusion process. Thesecond layer 32, the core layer, may include a material that acts as a barrier to prevent the scented material from migrating toward the container. Thethird layer 33, the inner layer, may include a material that adheres to the exterior surface of the container. Preferably, theinner layer 33 includes a material that is the same or similar to the container material, for example, HDPE. Optionally, theinner layer 33 may include a heat activated resin that would attach the finished label to the container when it comes into contact with the heated structural material of the container. After extrusion, thelabel film 30 may be optionally moved to a printing station whereinformation 35 such as text and/or graphics may be printed on thelabel film 30.FIG. 3 shows a partial top view of thelabel film 30 after passing the printing station. Then, the printedlabel film 30 may be optionally moved to a cutting station where it is cut into individual labels. These finished labels may then be stored in a magazine or cartridge for use during the in-mold process. In one embodiment, theinner layer 33 may include additives to provide slip and anti-static properties to prevent the labels from sticking to each other while stored in the magazine and to promote separation of the labels to facilitate insertion of the labels into the mold. The size of the finished label may be any suitable size desired for incorporation onto the container. For example, the size of the finished label may be less than one-half or one-fourth of the size of the exterior surface of the container. - Several methods are contemplated for treating the label with a scented material. In one embodiment, the scented material is added to the label during extrusion of the polymeric label film. For example, the scented material may be supplied to a chemical injection feed during the extrusion step such that the label film extruded from the die will have the scented material incorporated therein. Alternatively, a carrier polymer is initially imbibed in the scented material. The imbibed carrier polymer is subsequently blended with a primary polymer and extruded to form the label film. In both cases, a desired portion of the scented material may be advantageously added to the label. For a label containing more than one layer, the scented material may be incorporated into one or more of the layers.
- The polymeric label film may be extruded using a cast film process, a blown-film process, or any suitable process known to a person of ordinary skill in the art. These processes may be used to manufacture a film having a thickness from 0.0003 inches to 0.005 inches or higher. In a cast film process, the polymeric label film is extruded in a molten state from an extrusion die ranging in width from 24 inches to 120 inches, although widths above and below this range may also be used. The hot extrudate is fed through a set of calendaring rolls which imparts a finish to the hot extrudate and creates a uniform film thickness. In some instances, the film may be processed for biaxial orientation to impart properties such as toughness to the film. Biaxial orientation may involve various combinations of stretch of the film in the machine direction and cross machine direction. If the film is to be oriented, heat is applied to the film after calendaring and the film is stretched in one direction, either machine direction or cross machine direction. Then the film is reheated and stretched in the opposite direction. If the film is not to be oriented, the film is allowed to cool as it continues through the cast film process. Thereafter, the edges are trimmed evenly, and the film is wound into rolls for subsequent processing such as printing and cutting.
- In a blown film process, the label film is manufactured by extruding the molten polymer through a circular die which may include multiple layers of various polymers. The hot extrudate is produced in a tubular form and may be processed without orientation. Alternatively, air may be forced inside the tube to enlarge the tubular diameter beyond the diameter of the circular die and impart an orientation into the film. Adding orientation to the film imparts properties such as toughness and clarity into the film. The tubular film is allowed to cool, and thereafter collapsed into a flat shape. Then the folded ends are trimmed off to provide the film with a desired width. The two halves of the film are wound onto separate rolls for subsequent processing.
- In another embodiment, the scented material may be encapsulated and subsequently disposed onto one or more layers of the label. In one embodiment, a scented material such as an oil or oil substance is enclosed in a microcapsule. The shell of the microcapsule may comprise urea-formaldehyde or cross-linked gelatin. Any of the known processes for encapsulating oil may be used to form the microcapsule. In one embodiment, the encapsulation process involves preparing an urea-formaldehyde precondensate using an alkaline catalyzed reaction of urea and formaldehyde in water. The scented material to fill the microcapsule is then added to the precondensate and may be maintained in the form of dispersed particles in the precondensate by agitation. In one embodiment, the scented material is relatively insoluble in the precondensate and inert toward reaction with other components in the precondensate. Thereafter, an acid catalyst is added to the precondensate to promote the formation of the polymerized shell wall of the microcapsule. Thereafter, the temperature of the precondensate may be raised to complete the shell formation. The reaction is allowed to proceed until a desired pH is reached before separation of the newly formed capsules. The microcapsules may be sprayed, printed, or otherwise disposed onto the film either before or after extrusion. In use, the scented material may be released by physically rupturing the shell using pressure, shear force, or heat. In one embodiment, the encapsulated fragrance is disposed in the printed outer layer to allow rupturing of the microcapsule by the consumer for sampling of the fragrance. Exemplary encapsulation processes are disclosed in U.S. Pat. No. 3,516,846 issued to Matson and U.S. Pat. No. 6,413,548 issued to Hamer et al., which patents are herein incorporated by reference in their entirety. It is contemplated that embodiments of the present invention include the use of any suitable method of treating the label with a scented material known to a person of ordinary skill in the art.
- In yet another embodiment, the scented material may be printed onto the surface of the label. The scented material may be incorporated into the ink and subsequently applied onto the polymeric label film. Using the above polymeric label films as an example, a label printer applies the ink to the outer layer of the label film. This is usually followed by application of a clear top-coat over the ink to protect the ink against abrasion and other environment factors. The ink is allowed to fully dry (i.e., cure) before the label film is cut into individual labels for use in the in-mold process.
- Various printing methods that are common in the industry may be utilized, such as rotogravure, offset lithography, and flexography. Silk screening may also be used, but is not a process that is typically used for large manufacturing quantities. However, the process of silk screening may apply a thicker layer of ink which may be desirable in certain applications. Factors considered when selecting the printing process include the desired ink thickness, viscosity of the printing inks, image to be printed, number of colors, and other operational concerns such as quantity of labels to be produced. The vehicle for delivering the scented material may impact the decision of which label manufacturing process to use. For example, if the scent vehicle is oil, the oil may be a component of the liquid ink and applied to the film using any of the above processes. On the other hand, if the scent vehicle is micro-encapsulated, a flexography process may be preferred over a rotogravure process. Rotogravure cylinders have an etched surface for picking up ink and depositing the inks onto the label film. The etched surface may have difficulty in picking up solids such as the encapsulated sphere for deposition onto the label film.
- Forms of the scented material include, but are not limited to, solid, gel, liquid, gas, and combinations thereof suitable for releasing a dispersant into the surrounding atmosphere. Examples of the scented material include fragrances, flavor, natural essential oils, synthetic perfumes, and combinations thereof. Perfumery materials which may form the active ingredient of the scented material include: natural essential oils such as lemon oil, mandarin oil, clove leaf oil, petitgrain oil, cedar wood oil, patchouli oil, lavandin oil, neroli oil, ylang oil, rose absolute or jasmin absolute; natural resins such as labdanum resin or olibanum resin; single perfumery chemicals which may be isolated from natural sources or manufactured synthetically, as for example alcohols such as geraniol, nerol, citronellol, linalol, tetrahydrogeraniol, betaphenylethyl alcohol, methyl phenyl carbinol, dimethyl benzyl carbinol, menthol or cedrol; acetates and other esters derived form such alcohols-aldehydes such as citral, citronellal, hydroxycitronellal, lauric aldehyde, undecylenic aldehyde, cinnamaldehyde, amyl cinnamic aldehyde, vanillin or heliotropin; acetals derived from such aldehydes; ketones such as methyl hexyl ketone, the ionones and methylionones; phenolic compounds such as eugenol and isoeugenol; synthetic musks such as musk xylene, musk ketone and ethylene brassylate.
- In a particular embodiment, the label containing the scented material is affixed to an article (e.g., container) using an in-mold label process. It is contemplated that any suitable in-mold label process may be used to affix the label. In one example, a blow mold label process is used to form a high density polyethylene (“HDPE”) bottle having an in-mold label treated with a scented material.
FIG. 4 illustrates a process flow diagram for forming the bottle. In one embodiment, the label is formed (step 4-1) from a label film having three layers of polymeric material, such as was described with respect toFIG. 2 . At step 4-2, a first layer, i.e., the outer layer, is treated with the scented material such as an oil substance during the extrusion process. After forming the label film, information such as text (i.e., alphanumeric characters) and/or graphics may be printed on the label film, see step 4-3. At step 4-4, top varnish or clear coat may be applied on top of the label. In one embodiment, the varnish or coat is sufficiently permeable so that the scented material may release into the surrounding atmosphere. At step 4-5, the label film is then cut into individual labels and stacked in a magazine for retrieval by a robot arm or other suitable conveying apparatus of an in-mold machine. The robot arm picks up a treated label and positions the label in the mold at step 4-6. In one embodiment, the mold includes a right body portion and a left body portion which may be brought together to form the mold.FIG. 5 shows onebody portion 51 of anexemplary mold 50. When the body portions are brought together, acavity 55 is formed in themold 50 and theinterior wall 60 of themold 50 is in the desired shape of the container. The robot arm positions thelabel 25 adjacent thewall 60 of at least one of thebody portions 51. The robot arm may include a transfer head adapted to engage thelabel 25 using a vacuum and to deliver thelabel 25 to themold 50. Alternatively, the label is held using a static charge or other known manner.FIG. 5 shows thelabel 25 positioned in thecavity 55. Thelabel 25 may be held in themold 51 using a vacuum or other suitable means. - Referring back to
FIG. 4 , at step 4-7, the HDPE material for the container is heated and extruded into the shape of a hollow tube, which is also known as a parison, for insertion into the mold. In one embodiment, the parison is heated to a temperature between about 365° K. (200° F.) and about 560° K. (550° F.) and, more preferably, between about 472° K. (390° F.) and about 505° K. (450° F.). Thereafter, at step 4-8, the mold, which is at a lower temperature relative to the parison, is closed around the parison. At step 4-9, blow air is injected into the hollow portion of the parison at a pressure between about 172.3 kPa (25 psi) to about 1,033.8 kPa (150 psi) to inflate the parison to conform to the cavity wall of the blow mold. During expansion toward the cavity wall, the parison is urged into engagement with the label. The label may attach to the parison as a result of its polymeric makeup. For example, the contact surface, i.e., theinner layer 33, of the label may be formed of the same polymeric material or a similar polymeric material as the container material, thereby facilitating the bonding of the label to the container. Alternatively, the label may attach to the parison using a heat activated resin, adhesive, or sealant layer applied on the contact surface of the label. In each of these embodiments, the label becomes an integral part of the container after engagement with the container. At step 4-10, after the parison cools, the mold is opened to eject the newly formed bottle. In this respect, the bottle formed includes a cavity for retaining a substance and an in-mold label attached to an exterior surface. In use, the in-mold label is adapted to release a scented material. In another embodiment, the treated label may be affixed to the container using an injection blow molding process or a stretch blow molding as is known to a person of ordinary skill in the art. An exemplary injection molding process is disclosed in U.S. Pat. No. 6,884,381 issued to Hashimoto, which patent is herein incorporated by reference in its entirety. - According to one embodiment, a benefit of the in-mold label process is that a “no-label” look may be achieved. In this respect, the in-mold label would not be easily removed or peeled off. One concern of the process is that the scented material may dissipate during the in-mold process. However, any such dissipation would not be sufficient to change the effectiveness of the treated label. One reason is that the scented material is generally treated on the side of the label that faces the cooled cavity wall, which is also the side that does not contact the container. Further, because the label is positioned adjacent the wall of the cooled metal mold, the outer surface of the container in contact with the label cools faster relative to other parts of the parison. Moreover, the molding process is a relatively short process such that an insignificant amount, if any, of the scented material is dissipated during the blow molding process. For example, according to one embodiment, the entire process from inserting the parison and ejecting the newly formed container may only take approximately 10 seconds.
- It must be noted that the scented material may be incorporated into any layer or a plurality of layers of the label. In one embodiment, the scented material may be incorporated into an interior layer of the label. For example, the scented material may be disposed on the extrusion tie-layer of the label. The extrusion tie-layer is typically used to adhere or “tie” two separate layers of the label. In one embodiment, the label may include an outer layer that is designed to promote effective ink adhesion for subsequent printing, for example, reversed printing of the layer with the desired information. Examples of outer layer material include OPET (oriented polyethylene terephthalate) or BOPP (biaxially-oriented polypropylene). The label may further include a heat activated inner adhesion layer. The inner adhesion layer may include additives which provide slip and anti-static properties to facilitate separation of the labels during the in-mold label process. An extrusion tie-layer may be used to “tie” the outer layer to the inner layer. Extrusion tie-layers may be non-reactive such as low density polyethylene (“LDPE”) and ethylene copolymers or reactive such as maleic anhydride grafted olefins. In one embodiment, the extrusion tie-layer is a semi-rigid opaque polyolefin film. By incorporating the scented material into the tie-layer, the tie-layer may perform dual functions. In addition to tying the layers, the scented material may permeate from the tie-layer into the outside environment or into the container content, where the container resin allows such permeation. In yet another embodiment, the label may further include a barrier layer disposed between the tie-layer and the inner adhesive layer. An exemplary barrier layer is a layer made from ethylene vinyl alcohol (“EVOH”). In this respect, the barrier layer would prevent the scented material from penetrating into the container and encourage the scented material to permeate only through the outer layer of the label.
- One benefit of having the fragrance contained in an interior layer of the label is that the scented material may be released over time. The rate of release may be controlled by the permeation rate through the outer layer. In this respect, the scent dissipation rate through the outer layer may be controlled to ensure that the product will make it to the market place and the label still possesses sufficient scent-generating capability to serve as a sample or to garner interest from the consumer. To further limit scent dissipation, the label may be wrapped or covered either before the label is incorporated onto the container by the in-mold process or after it has been disposed on the container, i.e., the finished container.
- In another embodiment, the label may be disposed on a container made from a material that is impervious to scent permeation. For example, the label may include a reversed printed outer layer, an extrusion tie-layer containing the scented material, and a heat activated inner adhesive layer. The label is formed on the container using an in-mold label process. The resin of the container is selected such that it is impervious to significant scent permeation. An exemplary resin for protecting against migration of flavors or aromas is ethylene vinyl alcohol (“EVOH”). EVOH resins are thermoplastic polymers that may be combined with other resins in a co-extrusion blow molding and other suitable processes to form the structural material for the container. Examples of container structural material containing EVOH include: (a) PP/regrind (recycled thermoplastic waste)/EVOH/PP; (b) HDPE/regrind/EVOH/HDPE; (c) HDPE/regrind/EVOH; and (d) PET/EVOH/ PET/EVOH/PET. Because use of the non-permeable resin negates the need for the additional barrier layer, this type of container has the added benefit of reducing manufacturing costs.
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FIG. 6 shows an exemplary embodiment of acontainer 100 having an in-mold label 110 adapted to release a scented material. As shown, thecontainer 100 includes abody 115 having a cavity in its interior for retaining a substance. Thecontainer 100 also includes anopening 120 for introduction of the substance into the cavity. Preferably, thecontainer 100 is made of a polymeric material. Thecontainer 100 may be of any shape, form, or size, so long as it is capable of being formed in an in-mold process. Exemplary containers include, but not limited to, bottle, bowl, jar, and any other containers capable of retaining a substance, which substance may be a solid, liquid, gas, or combinations thereof. - In
FIG. 6 , thelabel 110 is disposed on thecontainer 100 using an in-mold label process. Thelabel 110 may be any shape, form, or size. Preferably, thelabel 110 comprises a polymeric material. More preferably, the polymeric material is the same as or substantially the same as the polymeric material of thecontainer 100. Thelabel 110 may have printed thereon information, graphics, or combinations thereof. As shown, thelabel 110 is treated with ascented material 125, which may be released into the surrounding atmosphere. Thelabel 110 may be treated with thescented material 125 using any of the processes described above or any other suitable process known to a person of ordinary skill in the art. It is contemplated that a portion or theentire label 110 may be treated with scented material. Although only onelabel 110 is shown on thecontainer 100, it is contemplated that one ormore labels 110 may be attached to thecontainer 100. Further, not all of the labels, if more than one is used, are required to be treated with a scented material. For example, a container may have one label that is treated with a scented material and another label that is not treated with a scented material. Although one ormore labels 110 maybe positioned anywhere on thecontainer 100, it is preferred that at least a portion of alabel 110 is positioned on an exterior surface of thecontainer 100. - In another embodiment, the
container 100 may optionally include acap 130 adapted to close theopening 120, as illustrated inFIG. 6 . Thecap 130 may be any shape, form, or size, so long as it is capable of closing at least a portion of theopening 120. In one embodiment, thecap 130 may be manufactured in the same mold as thebody 115 of thecontainer 100. Alternatively, thecap 130 may be manufactured separately from thebody 115. Preferably, thecap 130 is formed using an in-mold label process. In one embodiment, thecap 130 may be formed with an in-mold label 135. The in-mold label 135 may be treated with ascented material 137, which may be released into the surrounding environment. Thelabel 135 may be positioned on a sidewall of thecap 130 or the top of thecap 130. Because the interior of thecap 130 is at least partially exposed when it is removed, thelabel 135 may alternatively be positioned on the interior of thecap 130. In another embodiment, thelabel 135 may cover a portion or theentire cap 130. In yet another embodiment, at least one in-mold label material body 115, thecap 130, or both. - Containers formed in accordance with embodiments of the present invention would find application in the promotion of any food, toiletries, cosmetics, or any product that has a distinctive or pleasant aroma. In addition, treated in-mold labels may serve as a warning label, for example, if the scent on the treated label is detected; a problem exists with the product. As a particular example, the label may be adapted to release a scent, or change the scent being released, upon exposure to a particular environmental effect or after a predetermined period of time. For example, the label may be placed on fungible goods and may be treated with a time-released scent that conveys to a user spoilage of the associated good.
- While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (33)
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EP07849083.6A EP2089217B1 (en) | 2006-11-20 | 2007-11-05 | Method for attaching a label having scented material and container having such a label |
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ITBG20110005A1 (en) * | 2011-02-08 | 2012-08-09 | Castelberg Technologies Srl | SCENTED PLASTIC PATCH WITH IML LABEL |
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US9733132B2 (en) * | 2011-09-30 | 2017-08-15 | Lg Hausys, Ltd. | In-mold transfer film which changes its color according to a temperature and which has a scent-emitting function and method for manufacturing same |
US20140230717A1 (en) * | 2011-09-30 | 2014-08-21 | Lg Hausys, Ltd. | In-mold transfer film which changes its color according to a temperature and which has a scent-emitting function and method for manufacturing same |
WO2014179374A1 (en) * | 2013-05-03 | 2014-11-06 | The Procter & Gamble Company | Package for a liquid laundry detergent |
US10040313B2 (en) | 2013-10-04 | 2018-08-07 | The Procter & Gamble Company | Processes and machines for decorating articles of manufacture |
US20150108015A1 (en) * | 2013-10-17 | 2015-04-23 | Pouch Pac Innovations, Llc | Pouch with absorbent liner and method of forming |
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WO2015077008A1 (en) * | 2013-11-22 | 2015-05-28 | The Procter & Gamble Company | Packaged consumer product |
US10457447B2 (en) | 2013-11-22 | 2019-10-29 | The Procter & Gamble Company | Packaged consumer product |
US11548197B2 (en) * | 2016-09-13 | 2023-01-10 | Aisapack Holding Sa | Method for extruding and labelling a cylindrical product |
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Also Published As
Publication number | Publication date |
---|---|
CN101541515B (en) | 2013-07-03 |
WO2008062334A2 (en) | 2008-05-29 |
EP2089217A2 (en) | 2009-08-19 |
AU2007323090A1 (en) | 2008-05-29 |
BRPI0719028B1 (en) | 2018-05-08 |
MX2009005303A (en) | 2009-06-04 |
US8048363B2 (en) | 2011-11-01 |
KR101476465B1 (en) | 2014-12-24 |
CN101541515A (en) | 2009-09-23 |
WO2008062334A3 (en) | 2008-08-21 |
KR20090091135A (en) | 2009-08-26 |
BRPI0719028A2 (en) | 2013-11-05 |
EP2089217B1 (en) | 2015-01-07 |
AU2007323090B2 (en) | 2012-01-19 |
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